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Revise CACERTS autodetection logic, ensure that CACERTS/CAPATH is readable/directory, add undocumented CAPATH env override.

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This takes advantage of the new --cafile logic to avoid running CACERTS
autodetection when a file is provided on the command line.

It then ensures the readability of that file, whether provided or
autodetected.

This also adds an undocumented CAPATH environment variable alternative
to --capath, to go along with the existing undocumented CACERTS
environment variable alternative to --cafile, to provide legacy support
for preexisting users.
This commit is contained in:
Richard Soderberg 2015-09-05 00:37:44 -07:00
parent 5dc692566a
commit 6adda69af5
1 changed files with 15 additions and 6 deletions
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cipherscan
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@ -54,7 +54,6 @@ if [[ -e $DIRNAMEPATH/openssl.cnf ]]; then
export OPENSSL_CONF="$DIRNAMEPATH/openssl.cnf"
fi
CACERTS=""
# RSA ciphers are put at the end to force Google servers to accept ECDSA ciphers
# (probably a result of a workaround for the bug in Apple implementation of ECDSA)
CIPHERSUITE="ALL:COMPLEMENTOFALL:+aRSA"
@ -132,7 +131,6 @@ OUTPUTFORMAT="terminal"
TIMEOUT=30
# place where to put the found intermediate CA certificates and where
# trust anchors are stored
CAPATH=""
SAVECRT=""
TEST_CURVES="False"
has_curves="False"
@ -1304,6 +1302,8 @@ do
--cafile)
CACERTS="$2"
shift 2
# We need to bypass autodetection if this is provided.
CACERTS_ARG_SET=1
;;
--capath)
CAPATH="$2"
@ -1377,18 +1377,27 @@ if [[ $TEST_CURVES == "True" ]]; then
fi
fi
if [[ -z $CACERTS ]] && ! [[ -n $CACERTS_ARG_SET ]]; then
# find a list of trusted CAs on the local system, or use the provided list
if [[ -z "$CACERTS" ]]; then
for f in /etc/pki/tls/certs/ca-bundle.crt /etc/ssl/certs/ca-certificates.crt; do
if [[ -e "$f" ]]; then
CACERTS="$f"
break
fi
done
fi
if [[ ! -e "$CACERTS" ]]; then
CACERTS="$DIRNAMEPATH/ca-bundle.crt"
fi
fi
if ! [[ -e $CACERTS && -r $CACERTS ]]; then
echo "--cafile $CACERTS is not a readable file, aborting." 1>&2
exit 1
fi
if [[ -n $CAPATH ]] && ! [[ -d $CAPATH ]]; then
echo "--capath $CAPATH is not a directory, aborting." 1>&2
exit 1
fi
if [[ $VERBOSE != 0 ]] ; then
[[ -n "$CACERTS" ]] && echo "Using trust anchors from $CACERTS"